You would need to compile LimeWire yourself. Simply download and install the latest JDK from
http://java.sun.com and ANT from
http://ant.apache.org . Then go to
http://www.limewire.org and checkout the latest LimeWire sources from cvs (instructions can be found on the website). To compile LimeWire all you have to do is execute the supplied compile scripts named "compile" or "compile.bat".
Once you've done that, send me an email:
gregorio@gmx.li I can send you the patch.